Home / 66,123.06-99,201.14-31,021.80

Finding the Fourth Proportional to 66,123.06, 99,201.14 and 31,021.80

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Solution

The fourth proportional to 66,123.06, 99,201.14 and 31,021.80 is: 46,540.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,123.06 : 99,201.14 = 31,021.80 : x
  2. Step 2: Convert to fraction form
    66,123.06/99,201.14 = 31,021.80/x
  3. Step 3: Cross multiply
    66,123.06x = 99,201.14 × 31,021.80
  4. Step 4: Simplify right side
    66,123.06x = 3,077,397,924.85
  5. Step 5: Solve for x
    x = 3,077,397,924.85/66,123.06
  6. Step 6: Final answer
    x = 46,540.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.